What the hell people argue about alt-coins ?
You don't decide alone what have value or not.
If people believe an alt-coin have value then it have value, that's it.
Your are right, Invest on new alt coins you will earn more if the coin get famous. Right now, I'm planning to invest on PowerCoin. Its very fast unlike bitcoin that an hour to send and recieve, powercoin only take 30 seconds.